Key-locking device.



W. FINN. KEY LOCKING DEVIGE.

- APPLICATION FILED 0GT.1, 1908.

Patented May 11, 1909.

INVENTOI? ATTORNEYS} which will be more full reslno'nding parts in al 4 inserted in the keyhole ot' the h WILLiAM ifilli )i.

Be it known that jert ot' the iiin; oi (:r" a dent of the city oi New Manhattan, in the ounly an York, have invented a no: and 1m, Key-Locking Devi e. oi which the in is ai'ull, clear, and exact description The invention relates to door l rl i i object is to provide a new and i111" locking device tor convenient all :1 the loc \i as a kt *hole cover, and securely hold the key a the outside and unlocl-zirn authorized persons.

The invention consists ol' no -cl Oil till FPS and parts and cornhinatiens oi' the san 1 ed ncrr-nnil'ter and then pointed out in th A practical embodiment represented in the z forming a part of this s :(liitiiihuh similar characters of nce induati' cor" lgure 1 is a face new oi ment as applied and showing the in s the device locked but in m open 7) convenient insertion or n ovalel' the hi hi 2 isan edge view of the snow on arged face view of the imp ing the key in section and turning by the dev of the same; and Fig. modified form of the it p vcinen The device, as illustrated in Fi and 4, is applied to"'the inside (St i of a door lock B of any approve ll 4' tion, and the device in the tern; of C pivoted at D to the escut; l keyhole E, to normally oov. to en age the flat shank of t I door ock B. The cover C is in t form of two arms C", 3 mounted to swing 2 cm the pivot D as the center, and the oppo k of the said arms C, C are provided with Je isterin notches C, adapted to on; fiat siank of the key if, after the r), as inthe key 1 is dicated in Figs. 2 and 3, so the.

held against turning, especially from the outi slde, by unauthorized person s rising suitahle 1 chleatic-n of Letters Patent,

1 the key il from the keyhole E. l-zev inserted and the door is locked, by

"JUNO" OF ONF FHUU) TO LABS BENDIX Patented May 11, 1909.

. nn'n is made: On the pivotal ends In arnzs t". (7. ar l'ornied two sets ol il'll ol' \vhirh the not hes 1 are in 'i or with eerh other when the arms C", -."ls d. \\hil tlie'motelies C are then registrar soc hie. U), and when the 5" ar opened the notches are out the catch (l is swung upward out of ena 'cnienl with tho notches C", to allow al ol the my} c Fig. 1). When the arms if, t. are in this open position, the i G engages the registering notches C, to hold the arms Q, (l in this open position,

3 for the convenient insertion or removal of After the turning the key, the lat shank thereof ex- 1 tends horizontally, so that when the operator now swings the catch G out oi engagement with the notches C then the arms C, t close and the notches C, C engage the hat shank of the key l as indicated in Fig. 3.

1 The catch G is now swung); into engagement,

' with the registering notches C so as to hold 4 v w inc arms (I (r locked in a closed position.

From the foregoing it will he soon that 3 when the arms 0', C are closed th y cover the keyh le E, and at the same time hold the in the modified 'l' rin shown in Fig. 6, the device ii for covering the keyhole E and 'l'ol locking the key against turning is provided with locking arms ll, ll. having notches il it" similar to the device shown in Figs. '1, 2, 3 and. 4, and ahove described, the arms being nurunted to swing on the pivot I held on the osculchcon J of the door lock. The pivotal ends ol the arms H, H are provided with radial arms ll, ll, between which is dap tcd to pass a key K pivoted at K on the arm ii, shown in Fig. 5. 'lhus when the. key K engages the arms ll, ll the looking arms ll, ii are h ld in a closed position, and when the key K is swung upward out of enl l l l l r while the not (:lu-s are in register.

, an l when it is desired to remove the key key i l'roni turning by uneutlwrizml perscms.

gagenientwith the arm 11", as indicated in dotted lines in Fig. 5, then the locking arms H, ll" can be swung, a nut for the insertion 1 or removal of the key Other forms may .begi'ven to the device,

2; A key-locking device; comprising a pair of lot-king arms mounted to swm .on the lock casing, to normally cover the eyhole,

the locking arms being provided on o esit'e edges with slots for engagement Wlt the \rhieh serves both a cover for the keyhole Hat shank of (he key to hold the latter against turning, the said arms being provid d at their l'nlertnn ends with sets of notches, and locking arms for engagement with the said sets of notches.

l. A keydwking deviee, comprising; a pair lot'li easing, to normally cover the keyhole,

the locking arms being provided on opposite I edges with slots for engagement with the llatfv shank of the key to hold the latter against turning, and a device for holding the said arms in an open position.

.ol lot-king arms mounted to swing; on the In testimony whereof I have signed my name to tlns sp(- e1fieatlon 1n the presence 01 two subscribing witnesses.

WILLIAM FINN.

\\'i t nesses:

O'r'ro Sonnxsnx,

Hnwnnts Lansnx. 

